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Просмотр файла: TokenInfo.js
/*-
*
* Hedera JavaScript SDK
*
* Copyright (C) 2020 - 2022 Hedera Hashgraph, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
import TokenId from "./TokenId.js";
import AccountId from "../account/AccountId.js";
import Duration from "../Duration.js";
import Timestamp from "../Timestamp.js";
import Long from "long";
import * as HashgraphProto from "@hashgraph/proto";
import TokenType from "./TokenType.js";
import TokenSupplyType from "./TokenSupplyType.js";
import CustomFixedFee from "./CustomFixedFee.js";
import CustomFractionalFee from "./CustomFractionalFee.js";
import CustomRoyaltyFee from "./CustomRoyaltyFee.js";
import Key from "../Key.js";
import LedgerId from "../LedgerId.js";
/**
* @typedef {import("./CustomFee.js").default} CustomFee
*/
/**
* Response when the client sends the node TokenGetInfoQuery.
*/
export default class TokenInfo {
/**
* @private
* @param {object} props
* @param {TokenId} props.tokenId;
* @param {string} props.name;
* @param {string} props.symbol;
* @param {number} props.decimals;
* @param {Long} props.totalSupply;
* @param {AccountId | null} props.treasuryAccountId;
* @param {Key | null} props.adminKey;
* @param {Key | null} props.kycKey;
* @param {Key | null} props.freezeKey;
* @param {Key | null} props.pauseKey;
* @param {Key | null} props.wipeKey;
* @param {Key | null} props.supplyKey;
* @param {Key | null} props.feeScheduleKey;
* @param {boolean | null} props.defaultFreezeStatus;
* @param {boolean | null} props.defaultKycStatus;
* @param {boolean | null} props.pauseStatus;
* @param {boolean} props.isDeleted;
* @param {AccountId | null} props.autoRenewAccountId;
* @param {Duration | null} props.autoRenewPeriod;
* @param {Timestamp | null} props.expirationTime;
* @param {string} props.tokenMemo;
* @param {CustomFee[]} props.customFees;
* @param {TokenType | null} props.tokenType;
* @param {TokenSupplyType | null} props.supplyType;
* @param {Long | null} props.maxSupply;
* @param {LedgerId|null} props.ledgerId
*/
constructor(props) {
/**
* ID of the token instance
*
* @readonly
*/
this.tokenId = props.tokenId;
/**
* The name of the token. It is a string of ASCII only characters
*
* @readonly
*/
this.name = props.name;
/**
* The symbol of the token. It is a UTF-8 capitalized alphabetical string
*
* @readonly
*/
this.symbol = props.symbol;
/**
* The number of decimal places a token is divisible by
*
* @readonly
*/
this.decimals = props.decimals;
/**
* The total supply of tokens that are currently in circulation
*
* @readonly
*/
this.totalSupply = props.totalSupply;
/**
* The ID of the account which is set as treasuryAccountId
*
* @readonly
*/
this.treasuryAccountId = props.treasuryAccountId;
/**
* The key which can perform update/delete operations on the token. If empty, the token can be perceived as
* immutable (not being able to be updated/deleted)
*
* @readonly
*/
this.adminKey = props.adminKey;
/**
* The key which can grant or revoke KYC of an account for the token's transactions. If empty, KYC is not required,
* and KYC grant or revoke operations are not possible.
*
* @readonly
*/
this.kycKey = props.kycKey;
/**
* The key which can freeze or unfreeze an account for token transactions. If empty, freezing is not possible
*
* @readonly
*/
this.freezeKey = props.freezeKey;
/**
* The Key which can pause and unpause the Token.
*
* @readonly
*/
this.pauseKey = props.pauseKey;
/**
* The key which can wipe token balance of an account. If empty, wipe is not possible
*
* @readonly
*/
this.wipeKey = props.wipeKey;
/**
* The key which can change the supply of a token. The key is used to sign Token Mint/Burn operations
*
* @readonly
*/
this.supplyKey = props.supplyKey;
this.feeScheduleKey = props.feeScheduleKey;
/**
* The default Freeze status (not applicable = null, frozen = false, or unfrozen = true) of Hedera accounts relative to this token.
* FreezeNotApplicable is returned if Token Freeze Key is empty. Frozen is returned if Token Freeze Key is set and
* defaultFreeze is set to true. Unfrozen is returned if Token Freeze Key is set and defaultFreeze is set to false
* FreezeNotApplicable = null;
* Frozen = true;
* Unfrozen = false;
*
* @readonly
*/
this.defaultFreezeStatus = props.defaultFreezeStatus;
/**
* The default KYC status (KycNotApplicable or Revoked) of Hedera accounts relative to this token. KycNotApplicable
* is returned if KYC key is not set, otherwise Revoked
* KycNotApplicable = null;
* Granted = true;
* Revoked = false;
*
* @readonly
*/
this.defaultKycStatus = props.defaultKycStatus;
/**
* The default pause status of Hedera accounts relative to this token.
* PauseNotApplicable is returned if pauseKey is not set
* PauseNotApplicable = null;
* Paused = true;
* Unpaused = false;
*
* @readonly
*/
this.pauseStatus = props.pauseStatus;
/**
* Specifies whether the token was deleted or not
*
* @readonly
*/
this.isDeleted = props.isDeleted;
/**
* An account which will be automatically charged to renew the token's expiration, at autoRenewPeriod interval
*
* @readonly
*/
this.autoRenewAccountId = props.autoRenewAccountId;
/**
* The interval at which the auto-renew account will be charged to extend the token's expiry
*
* @readonly
*/
this.autoRenewPeriod = props.autoRenewPeriod;
/**
* The epoch second at which the token expire: will; if an auto-renew account and period are specified,
* this is coerced to the current epoch second plus the autoRenewPeriod
*
* @readonly
*/
this.expirationTime = props.expirationTime;
/**
* The memo associated with the token.
*
* @readonly
*/
this.tokenMemo = props.tokenMemo;
this.customFees = props.customFees;
this.tokenType = props.tokenType;
this.supplyType = props.supplyType;
this.maxSupply = props.maxSupply;
this.ledgerId = props.ledgerId;
}
/**
* @internal
* @param {HashgraphProto.proto.ITokenInfo} info
* @returns {TokenInfo}
*/
static _fromProtobuf(info) {
const defaultFreezeStatus =
/** @type {HashgraphProto.proto.TokenFreezeStatus} */ (
info.defaultFreezeStatus
);
const defaultKycStatus =
/** @type {HashgraphProto.proto.TokenKycStatus} */ (
info.defaultKycStatus
);
const pauseStatus =
/**@type {HashgraphProto.proto.TokenPauseStatus} */ (
info.pauseStatus
);
const autoRenewAccountId =
info.autoRenewAccount != null
? AccountId._fromProtobuf(info.autoRenewAccount)
: new AccountId(0);
return new TokenInfo({
tokenId: TokenId._fromProtobuf(
/** @type {HashgraphProto.proto.ITokenID} */ (info.tokenId)
),
name: /** @type {string} */ (info.name),
symbol: /** @type {string} */ (info.symbol),
decimals: /** @type {number} */ (info.decimals),
totalSupply: Long.fromValue(/** @type {Long} */ (info.totalSupply)),
treasuryAccountId:
info.treasury != null
? AccountId._fromProtobuf(
/** @type {HashgraphProto.proto.IAccountID} */ (
info.treasury
)
)
: null,
adminKey:
info.adminKey != null
? Key._fromProtobufKey(info.adminKey)
: null,
kycKey:
info.kycKey != null ? Key._fromProtobufKey(info.kycKey) : null,
freezeKey:
info.freezeKey != null
? Key._fromProtobufKey(info.freezeKey)
: null,
pauseKey:
info.pauseKey != null
? Key._fromProtobufKey(info.pauseKey)
: null,
wipeKey:
info.wipeKey != null
? Key._fromProtobufKey(info.wipeKey)
: null,
supplyKey:
info.supplyKey != null
? Key._fromProtobufKey(info.supplyKey)
: null,
feeScheduleKey:
info.feeScheduleKey != null
? Key._fromProtobufKey(info.feeScheduleKey)
: null,
defaultFreezeStatus:
defaultFreezeStatus === 0 ? null : defaultFreezeStatus == 1,
defaultKycStatus:
defaultKycStatus === 0 ? null : defaultKycStatus == 1,
pauseStatus: pauseStatus === 0 ? null : pauseStatus == 1,
isDeleted: /** @type {boolean} */ (info.deleted),
autoRenewAccountId: !(
autoRenewAccountId.shard.toInt() == 0 &&
autoRenewAccountId.realm.toInt() == 0 &&
autoRenewAccountId.num.toInt() == 0
)
? autoRenewAccountId
: null,
autoRenewPeriod:
info.autoRenewPeriod != null
? Duration._fromProtobuf(
/** @type {HashgraphProto.proto.IDuration} */ (
info.autoRenewPeriod
)
)
: null,
expirationTime:
info.expiry != null
? Timestamp._fromProtobuf(
/** @type {HashgraphProto.proto.ITimestamp} */ (
info.expiry
)
)
: null,
tokenMemo: info.memo != null ? info.memo : "",
customFees:
info.customFees != null
? info.customFees.map((fee) => {
if (fee.fixedFee != null) {
return CustomFixedFee._fromProtobuf(fee);
} else if (fee.fractionalFee != null) {
return CustomFractionalFee._fromProtobuf(fee);
} else {
return CustomRoyaltyFee._fromProtobuf(fee);
}
})
: [],
tokenType:
info.tokenType != null
? TokenType._fromCode(info.tokenType)
: null,
supplyType:
info.supplyType != null
? TokenSupplyType._fromCode(info.supplyType)
: null,
maxSupply: info.maxSupply != null ? info.maxSupply : null,
ledgerId:
info.ledgerId != null
? LedgerId.fromBytes(info.ledgerId)
: null,
});
}
/**
* @returns {HashgraphProto.proto.ITokenInfo}
*/
_toProtobuf() {
return {
tokenId: this.tokenId._toProtobuf(),
name: this.name,
symbol: this.symbol,
decimals: this.decimals,
totalSupply: this.totalSupply,
treasury:
this.treasuryAccountId != null
? this.treasuryAccountId._toProtobuf()
: null,
adminKey:
this.adminKey != null ? this.adminKey._toProtobufKey() : null,
kycKey: this.kycKey != null ? this.kycKey._toProtobufKey() : null,
freezeKey:
this.freezeKey != null ? this.freezeKey._toProtobufKey() : null,
pauseKey:
this.pauseKey != null ? this.pauseKey._toProtobufKey() : null,
wipeKey:
this.wipeKey != null ? this.wipeKey._toProtobufKey() : null,
supplyKey:
this.supplyKey != null ? this.supplyKey._toProtobufKey() : null,
feeScheduleKey:
this.feeScheduleKey != null
? this.feeScheduleKey._toProtobufKey()
: null,
defaultFreezeStatus:
this.defaultFreezeStatus == null
? 0
: this.defaultFreezeStatus
? 1
: 2,
defaultKycStatus:
this.defaultKycStatus == null
? 0
: this.defaultKycStatus
? 1
: 2,
pauseStatus:
this.pauseStatus == null ? 0 : this.pauseStatus ? 1 : 2,
deleted: this.isDeleted,
autoRenewAccount:
this.autoRenewAccountId != null
? this.autoRenewAccountId._toProtobuf()
: undefined,
autoRenewPeriod:
this.autoRenewPeriod != null
? this.autoRenewPeriod._toProtobuf()
: null,
expiry:
this.expirationTime != null
? this.expirationTime._toProtobuf()
: null,
memo: this.tokenMemo,
customFees: this.customFees.map((fee) => fee._toProtobuf()),
tokenType: this.tokenType != null ? this.tokenType._code : null,
supplyType: this.supplyType != null ? this.supplyType._code : null,
maxSupply: this.maxSupply,
ledgerId: this.ledgerId != null ? this.ledgerId.toBytes() : null,
};
}
/**
* @param {Uint8Array} bytes
* @returns {TokenInfo}
*/
static fromBytes(bytes) {
return TokenInfo._fromProtobuf(
HashgraphProto.proto.TokenInfo.decode(bytes)
);
}
/**
* @returns {Uint8Array}
*/
toBytes() {
return HashgraphProto.proto.TokenInfo.encode(
this._toProtobuf()
).finish();
}
}
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